What is the curb stop used for?

The curb stop plays a crucial role in water distribution systems primarily as a means to shut off service to a specific customer or property. This is especially important for maintenance activities or repairs when access to the service line is needed without interrupting the entire water supply system. Additionally, a curb stop can also be used to disconnect service for nonpayment.

In contrast, regulating water pressure is typically managed by pressure-reducing valves or similar equipment and not by curb stops. Measuring water flow rate is performed with water meters and flow meters, which are specifically designed for that purpose. The connection of service lines to the main line is handled by other fittings and valves, not the curb stop itself. Thus, the primary function of a curb stop is indeed to turn off service for repair or due to nonpayment, making it an essential component in managing water distribution effectively.